ps: Implement -l, -ly, -X field selection flags

Author: dezgeg

src/uu/ps/src/mapping.rs

@@ -51,6 +51,25 @@ pub(crate) fn job_format_codes() -> Vec<String> {
         .to_vec()
 }
 
+/// Returns the long format codes (for -l flag).
+pub(crate) fn long_format_codes() -> Vec<String> {
+    [
+        "f", "s", "uid", "pid", "ppid", "c", "pri", "ni", "addr", "sz", "wchan", "tname", "time",
+        "ucmd",
+    ]
+    .map(Into::into)
+    .to_vec()
+}
+
+/// Returns the modified long format codes (for -ly flags).
+pub(crate) fn long_y_format_codes() -> Vec<String> {
+    [
+        "s", "uid", "pid", "ppid", "c", "pri", "ni", "rss", "sz", "wchan", "tname", "time", "ucmd",
+    ]
+    .map(Into::into)
+    .to_vec()
+}
+
 /// Returns the default codes with PSR column (for -P flag).
 pub(crate) fn default_with_psr_codes() -> Vec<String> {
     ["pid", "psr", "tname", "time", "ucmd"]
@@ -85,6 +104,15 @@ pub(crate) fn vm_format_codes() -> Vec<String> {
     .to_vec()
 }
 
+/// Returns the register format codes (for -X flag).
+pub(crate) fn register_format_codes() -> Vec<String> {
+    [
+        "pid", "stackp", "esp", "eip", "tmout", "alarm", "stat", "tname", "time", "command",
+    ]
+    .map(Into::into)
+    .to_vec()
+}
+
 /// Collect mapping from argument
 pub(crate) fn default_mapping() -> HashMap<String, String> {
     let mut mapping = HashMap::new();
@@ -100,8 +128,10 @@ pub(crate) fn default_mapping() -> HashMap<String, String> {
     append("_right2", "R2R2R2R2");
     append("_unlimited", "U");
     append("_unlimited2", "U2");
+    append("addr", "ADDR"); // undocumented
     append("ag_id", "AGID");
     append("ag_nice", "AGNI");
+    append("alarm", "ALARM"); // undocumented
     append("args", "COMMAND");
     append("atime", "TIME");
     append("blocked", "BLOCKED");
@@ -259,6 +289,7 @@ pub(crate) fn default_mapping() -> HashMap<String, String> {
     append("time", "TIME");
     append("timens", "TIMENS");
     append("times", "TIME");
+    append("tmout", "TMOUT"); // undocumented
     append("tname", "TTY");
     append("tpgid", "TPGID");
     append("trs", "TRS");

src/uu/ps/src/ps.rs

@@ -13,8 +13,9 @@ use clap::crate_version;
 use clap::{Arg, ArgAction, ArgMatches, Command};
 use mapping::{
     collect_code_mapping, default_codes, default_mapping, default_with_psr_codes,
-    extra_full_format_codes, full_format_codes, job_format_codes, signal_format_codes,
-    user_format_codes, vm_format_codes,
+    extra_full_format_codes, full_format_codes, job_format_codes, long_format_codes,
+    long_y_format_codes, register_format_codes, signal_format_codes, user_format_codes,
+    vm_format_codes,
 };
 use parser::{parser, OptionalKeyValue};
 use prettytable::{format::consts::FORMAT_CLEAN, Row, Table};
@@ -57,6 +58,10 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
         extra_full_format_codes()
     } else if matches.get_flag("j") {
         job_format_codes()
+    } else if matches.get_flag("l") && matches.get_flag("y") {
+        long_y_format_codes()
+    } else if matches.get_flag("l") {
+        long_format_codes()
     } else if matches.get_flag("P") {
         default_with_psr_codes()
     } else if matches.get_flag("s") {
@@ -65,6 +70,8 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
         user_format_codes()
     } else if matches.get_flag("v") {
         vm_format_codes()
+    } else if matches.get_flag("X") {
+        register_format_codes()
     } else if arg_formats.is_empty() {
         default_codes()
     } else {
@@ -200,6 +207,12 @@ pub fn uu_app() -> Command {
                 .action(ArgAction::SetTrue)
                 .help("job format"),
         )
+        .arg(
+            Arg::new("l")
+                .short('l')
+                .action(ArgAction::SetTrue)
+                .help("long format"),
+        )
         .arg(
             Arg::new("P")
                 .short('P')
@@ -225,6 +238,18 @@ pub fn uu_app() -> Command {
                 .action(ArgAction::SetTrue)
                 .help("virtual memory format"),
         )
+        .arg(
+            Arg::new("y")
+                .short('y')
+                .action(ArgAction::SetTrue)
+                .help("do not show flags, show rss vs. addr (used with -l)"),
+        )
+        .arg(
+            Arg::new("X")
+                .short('X')
+                .action(ArgAction::SetTrue)
+                .help("register format"),
+        )
         .arg(
             Arg::new("format")
                 .short('o')

tests/by-util/test_ps.rs

@@ -57,6 +57,29 @@ fn test_job_format() {
     check_header("-j", &["PID", "PGID", "SID", "TTY", "TIME", "CMD"]);
 }
 
+#[test]
+#[cfg(target_os = "linux")]
+fn test_long_format() {
+    check_header(
+        "-l",
+        &[
+            "F", "S", "UID", "PID", "PPID", "C", "PRI", "NI", "ADDR", "SZ", "WCHAN", "TTY", "TIME",
+            "CMD",
+        ],
+    );
+}
+
+#[test]
+#[cfg(target_os = "linux")]
+fn test_long_format_with_y() {
+    check_header(
+        "-ly",
+        &[
+            "S", "UID", "PID", "PPID", "C", "PRI", "NI", "RSS", "SZ", "WCHAN", "TTY", "TIME", "CMD",
+        ],
+    );
+}
+
 #[test]
 #[cfg(target_os = "linux")]
 fn test_psr_format() {
@@ -97,6 +120,17 @@ fn test_virtual_memory_format() {
     );
 }
 
+#[test]
+#[cfg(target_os = "linux")]
+fn test_register_format() {
+    check_header(
+        "-X",
+        &[
+            "PID", "STACKP", "ESP", "EIP", "TMOUT", "ALARM", "STAT", "TTY", "TIME", "COMMAND",
+        ],
+    );
+}
+
 #[test]
 #[cfg(target_os = "linux")]
 fn test_code_mapping() {